The laws of physics play a vital role in the field of Science. They are considered fundamental. So many laws of physics are formed after different researches or some of them are a new modification of existing laws as well as theoretical research. This article highlights the important laws of physics which will be helpful during the preparation of so many examinations. The physical laws are the conclusions based on scientific observations and experiments. These are repeated so many times with different conditions to reach the assumptions which can be accepted worldwide. These are continuously checked by the scientific community over time. The world works on some principles which are drawn by the scientists in the form of these physical laws.

**A brief outline of the topic: **

The laws of Physics have a huge impact on the different facts of nature. These laws are derived and proved through some observations. Every physical law that exists in nature has some connection with **Physics**.

Given below are the lists of physical laws:

Sr. No. | Name of law | Sr. No. | Name of law |

1 | Kelvin Planck Statement | 31 | Biot-Savart Law |

2 | Carnot’s Theorem | 32 | Faraday’s Law |

3 | Lambert’s Cosine Law | 33 | Ampere’s Law |

4 | D’alembert’s Principle | 34 | Faraday’s Laws of Electrolysis |

5 | Clausius Statement | 35 | Planck Equation |

6 | Law of Conservation of Mass | 36 | Kirchhoff’s law |

7 | Fourier’s Law | 37 | Kirchhoff’s Second Law |

8 | Hubble’s Law | 38 | Newton’s law of universal gravitation |

9 | Bell’s Theorem | 39 | Maxwell’s Equations |

10 | Boltzmann Equation | 40 | Bernoulli’s Principle |

11 | Lagrangian Point | 41 | Electric Potential due to a point charge |

12 | Beer-Lambert Law | 42 | Zeroth Law of Thermodynamics |

13 | Maxwell Relations | 43 | Gauss’ Law |

14 | Van Der Waals Equation | 44 | The first law of thermodynamics |

15 | Archimedes’ Principle | 45 | Lenz’s Law |

16 | Fermi Paradox | 46 | Wien’s Displacement Law |

17 | Helmholtz Equation | 47 | Ohm’s Law |

18 | Helmholtz Free Energy | 48 | Law of Equipartition of Energy |

19 | Ficks Law of Diffusion | 49 | Joule’s Laws |

20 | Raman Scattering | 50 | Laws of reflection |

21 | Wien’s Law | 51 | Brewster’s law |

22 | Dirac Equation | 52 | Radioactive Decay Law |

23 | Lagrangian Point | 53 | Bragg’s Law |

24 | Beer-Lambert Law | 54 | Murphy’s Law |

25 | Maxwell Relations | 55 | Doppler Effect |

26 | Van Der Waals Equation | 56 | Einstein Field Equation |

27 | Mach Number | 57 | Casimir Effect |

28 | Coulomb’s Law | 58 | Stefan-Boltzmann Law |

29 | Avogadro’s Hypothesis | 59 | Biot-Savart Law |

30 | Law of Conservation of Energy | 60 | Faraday’s Law |

**A brief note:**

Till now, many physicists have derived so many full-proof laws to explain the facts. The physical laws are the explanation that clears all physical phenomena of nature.

Not all laws of physics are easy to derive and explain. Therefore the explanation of some facts will be time-consuming to give their proof. Worldwide every scientific researcher is dedicatedly or indirectly working to establish a new law. The physicists have explained so many facts in the form of laws to state the phenomena which are happening all around the universe.

In this article, you will be able to find a brief knowledge of some of the basic laws of physics.

**Kepler’s Law:**

According to this law, each and every planet revolves around the Sun in an elliptical orbit with the Sun at focus. The straight line which joins the Sun and the planet moves out equal areas in an equal interval. The squares of the orbital periods of the planets are proportional to the cubes of their mean distance from the Sun.

**Ohm’s Law: **

According to this law, the current passing through a conductor between two points is directly proportional to the potential difference across the two points which are provided by the physical state and the temperature of the conductor does not change.

**Newton’s First Law of Motion: **

According to this law, a body continues in its state of uniform motion or in rest in a straight line until and unless an external force is applied to it. This law can also be called the Law of Inertia.

**Newton’s Second Law of Motion: **

According to this law, the rate of change of momentum is directly proportional to the compressed force and moves in the direction of the straight line in which the force acts.

**Newton’s Third Law of Motion: **

According to this law for each and every action there is an equal and opposite reaction.

**Coulomb’s Law: **

According to this law, the force between the two electric charges reduces to a quarter former value when the distance is doubled between them.

**Avogadro’s Law: **

This law was discovered in 1811 by Scientist Anedeos Avagadro. According to this law the equal volume of all gasses when under the same conditions of temperature and pressure then contains an equal number of molecules.

**Stefan’s Law: **

According to this law, the total energy which is radiated from a black body is equal to the fourth power of its absolute temperature.

**Pascal’s Law: **

According to this law, the pressure applied to a fluid in a closed container is transmitted equally to all the points in the fluid and act in all directions of the container.

**Hooke’s Law:**

According to this law, the extension of a spring is directly proportional to the tension stretching it. The double tension results in a double amount of stretching.

### Bernoulli’s Principle:

According to this principle the speed of a moving fluid, liquid or gas, increases with the decreased pressure within the fluid.

### **Boyle’s Law: **

According to this law, the temperature remains constant, the volume of a given mass of a gas varies inversely with the pressure of the gas.

### **Charles’s Law: **

According to this, the pressure remains constant when the volume of a given mass of gas increases or decreases by 1/273 part of its volume at 0 degree Celsius for every degree Celsius be rise or fall of its temperature.

**Tyndall effect: **

The Tyndall effect is the scattering of light by very small particles suspended in a gas or liquid.

Several laws of physics are important from the board exam point of view such as all three of Newton’s laws, Avogadro’s law, Coulomb’s Law, Stefan’s Law, Charles’s Law, Boyle’s Law, etc.

**FAQs (Frequently Asked Questions):**

**Q.** **What do you mean by the Law of Vibration?**

**Ans: **This law states that everything present in the universe is in a constant state of movement. We can refer to these movements as vibration, and the speed or rate at which something vibrates is known as its frequency.

**Q.** **Explain the Acceleration of Gravity.**

**Ans:** Whenever the objects fall freely towards the surface of the earth from a certain height, then there is a change in its velocity. This change in the velocity results in the acceleration in the object which is called acceleration due to gravity. The letter g denotes the acceleration. The mathematical value of acceleration due to gravity is g= 9.8 m/s2.

**Q.** **How do you explain Ohm’s Law?**

**Ans: **Ohm’s law defines the relationship between current, voltage, and resistance. The amount of stable current through a large number of materials is directly proportional to the potential difference, or voltage, across the materials.